Paper-cutting device for paper-making machines



v Patented am 3, 3 $HEETS-SHEET I.

vll I H In 1' 7 W. H. SHELLINGTON.

PAPER CUTTING DEVICE FOR PAPER MAKING MACHINES. APPLICATION FILED SEPT.21. 1918. RENEWED-NOV. 23, 1921.

INVENTOR ATTORNEY W.'H. SHELLINGTON.

PAPER cunmfe DEVICE FOR PAPE R MAKING MACHINES. APPLICATION FILED SEPT-27,19l8- RENEWED NOV- 23, I921.

1,402,451. y Patented Jai1.3,1922, v a SHEETS-SHEET 2.

iNVENTOR ATTORNEY W; H! SHELLINGTONL' PAPER CUTTING DEVICE FOR PAPERMAKING MACHINES. APPLICATlON FILED SEPT.27,19I8- RENEWED NOV. 23, 1921.

uuvillili ATTORNEY 3 SHEETSSHEET 3.

INVENTOR Patented Jan. 3, 1922.

7 rolls smoothly and uniformly;

WILLIAM H. SHELLING TON, OF TICONDEROGA, NEW YORK, ASSIGNOR To IN TIONALPAPER- COIVIPANY, A CORPORATION runneon NEW YORK.

rarnn-ou'rrms nnvicr. For. PAPER-MAKING MACHINES.

Application filed September 2?, 1918, Serial No. 255,936. RenewedNovember 23, 1921.

To (ZZZ 10 7mm it may comer-n Be it known that I, WILLIAM H. $HEL-riNcroN, a citizen of the United States, re-

siding at Ticonderoga,

' in they county of Essex and State of New" York, have invent- .edcertain new and useful Improvements in larly to mechanical means forsevering or cutting the paper sheet or Web to facilitate itsintroduction or stacking in the calender rolls. j

In the operation of paper. making machines, the paper sheet from theforming wire passes alternately around upper and lower drying cylindersby which the damp sheet is dried, thence to calender rolls which givethe sheet its calendered finish, and is finally wound in a roll on awinding roll. It not unfrequently happens that in the passage of thesheet through thermachine, it breaks or partsbefore it reaches thecalender rolls, and consequently it is necessary, after the travel ofthenew sheet has been re-established, to enter the front end of the sameinto the calender rolls. This reentry of the sheet in the calenderrolls, or stacking as it is termed in the trade,.has been the cause ofannoyance, delay and wastage of paper, the practice so far as I amaware, being for'the attendant to tear the new sheet across on adiagonal line where it passes from the last drying cylinder, in order toleave a tongue or projecting portion at one edge to be entered in thecalenderrolls. The operation thus performed is slow and uncertain andresultsin an accumulation and loss of the paper as it continues to passfrom the drying cylinders, while the attendant'is inserting the end inthe calender rolls. The operation also re quires the attention and aidof two or more attendants who usually work at this partof the machine. Afurther objection is, that, due to the uncertain'and uneven tearingaction as performed hand,'there is liability of the paper failing toenter the -calender and it may become bunched and clog the calenderrolls and cause breakage or serious injury.

My invention aims to overcome these ob- Specification of Letters Patent.

Patented Jan. 3, i922.

jections, and it consists in the provision of a mechanical cuttingdevice which may be operated by a single attendant to cut or incise thesheet, preferably where it, passes from one drying cylinder to the neXtat the end of the series, the cutting action being speedily performed ina uniform manner, and such that a tongue or projection will be left'onthe end of the sheet to facilitate 1ts entry into the calender rolls. Asa result, the end of the new. sheet may be e11- tered by the attendantinto the calender rolls in a uniform and smooth manner and without theliability of the formation of bunches or the clogging of the rolls, andwith a minimum of waste.

Theinvention consists also in so constructing and mountingnthe cuttingdevice that its actuation to incise the sheet will be effected by powermeans under the control of the attendant.

In the acompanying drawings:

Fig. 1 is a side elevation of the dry end of a paper making machinehaving my invention embodied therein;

Fig. 2 is a similar view on an enlarged scale, of the terminal portionof the series. of drying cylinders with my cutting device applied.

Fig. 3 is an elevation on an enlarged scale of the cutting device andone form of operating means, said parts being detached from the machine.

Fig. 4: is a. similarfview showing a form of power means for operatingthe cutting devices.

Fig. 5 is a vertical cross section. on the line a-a of Fig. 4:.

Fig. 6 is an end elevation of the device shown in Fig. 4 looking in thedirection of the arrow in said figure.

Fig. 7 is a view in the nature of a diagram showing how the paper sheetis out by the device.

j Referring to the drawings:

Referring particularly to Fig. 1, l designates the terminal portion ofthe series of drying cylinders arranged as'usual in the sustaining frame1 in upper and lower rows, with-the cylinders 1 of the upper rowalternating with the cylinders 1 of the lower row; and 2 designates thepaper sheet or web from the forming wire, (not shown), which sheetpasses continuously in the rotation of the drying cylinders alternatelyaround the Serial No. 517,381.

tained as usual one above the other in suitable sustaining frame 3,around which rolls the dried sheet passes from the last drying cylinder,and by which the sheet is given a finished or calendered surface; and 4:designates a winding roll rotatably mountedin a frame F, and onto whichthe paper sheet is wound after it leaves the calender rolls.

The. foregoing parts may be of the usual and ordinary construction wellknown to those skilled in this art, and in themselves they form no partof the present invention.

5 designates the cutting device constituting the present invention,which device is preferably in the form of a pointed cutter or needle 5,and which cutting device is sustained preferably by the frame of thedrying cylinders so that it will act on the paper sheet where it passesfrom the last lower drying cylinder l 'to the last upper drying cylinder1, the said needle being so sustained and mounted that it may be swungby the attendant inwardly from a normal inoperative position out ofcontact with the paper sheet, to an operative position in contact withthe same, and may then be moved transversely of the direction of travelof the sheet to incise the same cross-wise.

To effect these actions, the needle is fixed at its inner end to a slideor block 6 so as to extend radially therefrom, which slide is mounted tomove back and forth in a casing orguide tube 7, with the needleprojecting through a longitudinal guide slot 8 in the tube. The guidetube extends from front to rear, parallel with the axes of the dryingcylinders and ismounted at its ends to rock in bearings 9 and 10sustained respectively by front and rear brackets 11 and 12 fixed to theframe 1 at its front ant rear and projecting inwardly toward the papersheet. The front bearing 9 is formed in its upper side with a slot 13through which projects a handle 14 having its inner end fixed to theguide tube, so that the latter may be rocked by the handle back andforth, which action, due to the engagement of the walls ofthe slot 8with theneedle, will correspondingly rock the latter. The length of theslot 13 and the relation of the parts is such that when the handle isswung to the left as shown in Fig. l the needle will be sustained in anoutward inoperative position with its cutting end free of the papersheet as shown by dotted lines in Fig. 2, and when the'handle is movedinwardly, the needle will be moved to an operative position extendinginwardly toward the paper with its cutting end in engagement withthesame. The slide has tached to its front end as shown in 3, an

operating member 15 in the form of a piece of flexible hose" whichextends outwardly beyond the end of the tube within reach of theattendant, and by means of which the slide and needle carried therebymay be moved longitudinally along the tube to cause the cutting end ofthe needle to traverse the paper sheet and cut or incise the same.

Theoperation of the mechanism so far described is as follows:Assume-that the sheet has parted or broken and the new sheet has beenstarted by the attendants and is feedingthrough the drying cylinders andpassing downwardly from the last cylinder as shown by dotted lines inFig. 1; and assume also that thecutting needle is in an outwardinoperative position as shown in said figure with its cutting end freeof the paper sheet passing upwardly from the last lower drying cylinderto the last upper cylinder. The attendant while the sheet is traveling,grasps the handle 14: and swings th same inwardly, therebycorrespondingly swinging the cutting needle and engaging its cutting endwith the traveling sheet, care being taken that the slide 6 will be atthe forward part of the guide tube in such position that the needle willengage the sheet some distance, say 12 to 18 inches, from its I comefrom the drying cylinders and the needle continues to incise the same,the separated tongue will increase in length, and

the attendant takes hold of the free endof the tongue and carries it upto the top calender rolls and enters the same therebetween. The rotationof the calender rolls begins to feed the tongue therethrough,

while the main portion of the sheet runs.

down from the last drying cylinder, and when the tongue is feedingproperly through the calender rolls, and the sheet is pulling tightbetween the two last drying cylinders, the attendant by means of theoperating hose 15, moves the slide and attached cutting needlelongitudinally along the guide tube rearwardly through the remainingwidth of the sheet. This action will form an incision B in the sheetextending cross wise thereof, which, due to the continued travel of thesheet, will be on an inclination. After the sheet has been thus finallysevered, the attendant grasps the handle 14 and swings the needleoutwardly to an inoperative position, and then byineans of the hose 15,the slide anclattached needle'are drawn by the frame 1 at the back.

' tion in a cord orv cable 19 which guide tube, by

I propose to provide power means for moving the cutting needle along theguide 1 tube, and controlling means for throwing the power means intoaction, so that after the needle has been swung into operativeposi-- 4engagement with the sheet, the stacker or attendant working at thecalender rolls, may throw the power mechanism into action and cause theneedle to traverse the sheet and efl ect the cross-wise out, withouttheaid of other attendants. In the present instance this action iseffected by the mechanism shown in Fig. 4:, where it will be seen that acord or cable 16 hasits opposite ends connected respectively with theopposite ends of the slide 6 within the guide tube ,as at 16 and 16 andpasses between its ends outside the tube and around vertical guidepulleys 17, 17 rotatably sustained by the brackets 11 and 12 outwardlyof the ends of the tube and below the 18, Figs. 1 and t, is attached toone end of passes upwardly over a guide pulley 20 and then downwardlyaround asecond guidepulley 21 sustained The opposite end of the cord isattached to the rear end 01"" the needle carrying slide within the guidetube as at 21 the tendency of the weight being to draw the slide towardthe rear, The weight is supported in elevated position, with the slideat the forward part of the means of a trigger or detent 22 pivotedbetween its ends on a bracket 23 attached to the frame 1, the lower endof the trigger being provided with a linger 22 adapted to enter an eye247011 the upper end of the weight, and the upper end 01" the triggerbeing provided with a horizontal arm 25 for the attachment of acontrolling or tripping cord 26. This cord passes upwardly over a guidepulley 27 sustained by the frame l and, then laterally to of thecalender rolls, where it passes over guide pulleys sustained by saidframe and extends to the front of the 'frame within reach of theattendant or stacker. in the operation of severing thesheet after thehandle 14: has been'swung inwardly to engage the needle with the same,the attendant by pulling on the cord 26 rocks the trigger on its axis,wh ich action will draw the finger 22 from the eye on the weight andrelease the latter, and the weight moving down by gravity, will draw theslide and attached cutting needle to the rear and thereby incise thesheet cross-wise. Due to this construction, the cutting device is underthe complete control of the stacker or attendant working at the calenderrolls, and enables him without the aid of other attendants, to form, thetongue on, the new sheet, enter the same in the calender rolls, andeffect the same. A weight the frame 7 cross-wise cut of the sheet. Theoperation may be performed speedily and with uniformity, and ensuresthat the new sheet will enter the calender rolls smoothly and evenly andwithout liability of bunching or clogging the rolls. Furthermore by theoperation of the device, the accumulation of the paper to anobjectionable extent between the drying cylinders and the calender rollsis avoided, and the wastage of paper consequently reduced to a minimum.

In the foregoing description and accompanying drawings I have set forthmy invention in the particular detailed form which'I prefer to adopt,but it will be understood that'these details may be variously changedand modified without departing from the spirit oi the invention; andfurther it will be understood that the invention is not to be limited toany particular form or construction of the parts except in so far assuch limitations are specified in the claims. Obviously it is notessential to the invention that the cutting needle be arranged as shownin full lines and as above described, to acton the sheet where it passesfrom the last lower drying cylinder to the last upper drying cylinder asgood results can be cured if it is applied to act at other points, forinstance as shown by dotted lines to the right in Fig. 2.

Having thus described my invention, what I claim is: r c

1. In a paper making machine, the combination of a series oi paperdrying cylinders in said travel, to facilitate the entry of the sheetbetween the calender rolls.

2. In a paper making machine, the combination of a series of paperdrying cylinders through which series the paper sheet travels, and apaper cutting member provided with a cutting portion, said member beingsustained in position to act on the sheet in its travel through theseries of drying cylinders,

and said cutting member being operable to cause its cutting portion toengage and incise the sheet in a directioncrosswise of its travel, tofacilitate the entry of the sheet between the calender rolls.

8. In a-paper making machine, the combination of a series of paperdrying cylinders through which series the paper sheet travels, and apaper cutting member provided with a cutting portion, said member beingsustained in position to act on the sheet in its travel through theseries or" drying cylinders, and said cutting member being operable tocause its cutting portion to engage and incise the anda paper cuttininc-ml: provided with cutting portion, said member being sustainedinposition to act on the shoe in its travel throu h the series of beingoperable to cause its utting portion A to engage and incise hesheetsubstantially throughout its width to iacilitate the entry of thesheet between the calender rolls.

5. In a papermaking machine, the combination of drying cylinders for thetravelpaper sheet, and a paper cuttingmember provided with a cuttingportion, said memher being sustained in position to act on the travelingsheet and being operableto cause its cutting portion to engage andincise the sheet at or adjacent the point where it passes from onedrying ylinder to the next.

6. In a paper making machine, the combination of drying cylinders forthe traveling paper sheet, and a paper cutting member provided with acutting portion, said memher being sustained inposition to act on thetraveling sheet, and being operable to incise the sheet in a directioncrosswise 01" its travel at or adjacent the point whe c it passes fromone drying cylinder to the next.

7. In a paper making machine, the combination of drying cylinders forthe traveling paper sheet, and a paper cutting member provides with acutting portion, said member being sustained in position to on thetraveling sheet and being operable to incise the sheet at or adjacentthe point where it passesfrom one drying cylinder to the next, both inthe direction of its travel and crosswise thereof.

8. In a paper making machine, the combination of a series of dryingcylinders through which series the paper sheet travels, and a papercutting member provided with a cutting portion, said member beingsustained in position to act on the sheet in its travel through thedrying cylinders; and being movable from an inoperative position free ofthe sheet toward the same to cause its cutting portion to engage thesheet, and

being movable also transversely of the travel of the sheet to cause itscutting portion to incise the same crosswise.

9. In combination with a paper making machine provided with paper dryingcylinders, a paper cutting device applied to the machine at or adjacentthe drying cylinders and movable to incise the dried paper sheet,

and power operated means acting on said device to move the same.

10. In combination with a paper making machine provided with paperdrying cylinders, a paper cutting device applied to the cylinders a ndmachine-at or adjacent the drying cylinders and movable to incise thedried paper sheet, power operated means adapted to act-on the cuttingdevice to move the same, and controllmg means for throwing the powerrection of travel of the paper sheet to incise' the same cross-wise, aweight operatively connected with the cutting device to move it, andareleasable member for sustaining the weight elevated.

12..In combination with a paper making machine, a paper cutting deviceapplied thereto and movable transversely of the direction of travel ofthe paper sheet to lIl'flS3 the same cross-wise, a weight operativelyconnected with the cutting device to move it, a releasable member forsustaining the weight elevated, and means attached to said member forreleasing it.

13. In a paper making machine, and in combination with a frame, a guidemember sustained thereby and extending transversely of the direction oftravel of the paper sheet, and a cutting device projecting laterallyfrom the guide member and movable longitudinally thereof to act on thepaper sheet, means attached to the cutting device for moving itlongitudinally, said guide member being rockable on its longitudinalaxis to move the cutting device into and out of engagement with thesheet and being provided with a projecting portion independent of saidmeans, for rocking it.

i i. In a paper making machine, and in combination with the frame, aguide member sustained thereby and extending transversely of thedirection of travel of the paper sheet, a cutting device projectinglaterally from the guide member and movable longitudinally thereof toact on the paper sheet, said guide member being rockable on itslongitudinal axis to move the cutting device into and out of engagementwith the sheet, a handle attached to the guiding member for rocking it,and means connected with the cutting device and independent of thehandle for moving it longitudinally of the guide member.

15. In a paper making machine and in combination with the frame, a guidemenr ber sustained thereby and extending trans versely of the travel ofthe paper sheet, a cutting device sustained by the guide member andmovable longitudinally thereof, a cord attached at its opposite ends tothe cutting device and passing between its ends around guide pulleys,and an actuating cable connected with the cutting device for moving itlongitudinally of the guide member.

16. In a paper making machine, and in combination with the frame, aguide tube sustained by the frame to rock on its longitudinal axis andextending transversely of the travel of the paper sheet, said tube beingprovided with a longitudinal slot, a slide movable longitudinally withinthe tube, a cutting device fixed to the slide and projecting outwardlythrough the slot in the tube to act-on the paper sheet, means at tachedto the slide for moving it longitudinally and a handle fixed to the tubefor rocking itto move the cutter into and out of engagement with thepaper sheet.

17. In a paper making machine and in combination with the frame, a guidetube sustained thereby and extending trans ,versely of the travel of thepaper sheet and provided with a longitudinal slot, a'slide movablelongitudinally in the tube, a cutting device connected with the slideand projecting outwardly through the slot in the tube, a cord connectedat its opposite ends to the opposite ends of the slide within the tube,and extending between its ends outside the tube, a second cordattachedat one end to the slide, and a weight attached to the cord formoving the slide in the tube.

18. In a paper making machine, and in combination with a series ofdrying cylinders through which series the paper sheet 7 travels towardthe calender rolls, a paper cutting device movable transversely of thedirection of travel of the sheet and in engagement with the same'toincise the sheet crosswise, power means acting on the cutting device tomove the same, and controlling means for the power means extendingwithin reach of the attendant working at the calender rolls.

19. In a paper making machine, and incombination with a series of dryingcylin ders through which the paper sheet travels,

a paper cutting member provided with a cutting portion, and sustained inposition to act on the paper in its travel through the series of dryingcylinders, said member being operable to form an incision near one edgeof the sheet in the direct-ion of its travel, and being operable also toform a connecting incision crosswise of the remaining portion of thesheet, to facilitate the entry of the sheet between the calender rolls.

20. In a paper making machine through which the paper sheet travels inits advance to the calender rolls, the combination of a member providedwith a paper cutting por tion, said member being sustained in positionto act on the dried sheet and being operable to cause its cuttingportion to engage the traveling sheet and sever the same throughsubstantially its width whereby the severed end of the sheet may beentered directly between the calender rolls to reestablish its feed.

21. The method of manipulating the traveling paper sheet in a papermaking machine to reestablish its feed through the calender rolls, whichconsists in forming an incision in the traveling sheet at or adjacentthe drying cylinders in the direction of its travel to leave a strip,serving the strip from the body portion of the sheet to free one end ofthe strip and thereby form a tongue, entering the tongue directlybetween the calender rolls, and serving the sheet through its remainingbody portion.

22 The method of manipulating the traveling paper sheet in a papermaking machine to reestablish its feed through the calender rolls, whichconsists in forming an incision in the traveling sheet at or adjacentthe drying cylinders in the direction of its travel to leave a marginalstrip, severing the strip from the body portion of the sheet to form atongue, directly entering the tongue between the calender rolls andfinally continuing said incision but in a crosswise direction throughthe remaining body portion of the sheet to completely sever the same. v

In testimony whereof, I have affixed my signature hereto. 1

WILLIAM H. SHELLINGTON.

